Hardcore:

Are you stuck on Procharger or would you consider a Vortech system with one of our supercoolers?

wondering what heat range you guys are using for sparks plugs.i have a pro charged intercooled hp 500. and it came with ngk vpower plugs r5674-7.seems to me they should be colder than the #7 heat range?.the carb from nickerson should be done next week.

Hardcore,
Hope to have it running in a week and procharged (tubes connected)right after. I'll let you know how the carb mods are doing. Thanks for the help, I'm listening, Allen

Sleeker Im running r5671-8 in my alum heads with msd 6al with no idle problems. The plugs always look black and hard to read. but they dont load up.

I was wondering about plugs myself. I have Merlin VR cast-iron heads and would appreciate any suggestions on plugs for the M3 setup on that. According to the literature that came with my motor, my compression is 9:1.
Also, what are you all running for timing? 30 degerees?

BTW: I have the M3 about half-way installed now. (I actually had it for a while but I didn't want Cayformula to know but he came by last night and caught me installing it!)
I actually got a really good deal from an OSO member on a MPI setup and had to order a carb enclosure from Vortech which actually looks better set-up than the ATI box. I took the #78 jets out of the carb and put in # 90s to start. I'll probably cruise it at half-throttle and check the plugs.
BTW HPJunkie: the Procharger book says that they like to see the plugs with black- soot on the threaded part so you're probably close to where you need to be on jetting.
I'll let you guys know how it turns out.
Oh well, back to the wrenches!

He just wanted to abuse my poor little old Formula 272SR1.

I just want to be around when he surprises some of the other guys around here.

HARDCORE you had #78 jets in the front and rear?.btw i just picked up a couple boxes of ac mr43t plugs i called nickerson who is building a carb for the motor and he said they run the stock plugs.plus there cool plugs so less chance of detonation and i can get them local.im ready to take out the kryptonite soon as i get the carb.i got a 91.6 on gps a couple weeks ago with the engine hitting the rev limmiter on the stock hp 500 ignition at around 5200rpms and the jetting way fat.the engine dynoed its peak hp at 5500 rpms it made 710hp.so i just put in a full msd system with a 5600 rpm chip and getting the new carb from nickerson.im hoping it turns around 5400/5450 rpms.if i hit the rev limiter (5600) now ill have to pitch up the 34 bravo prop and should be right on the edge of triple digits.this is with a 1.50 ratio bravo 1 i probably should have a 1.36 gear.

Sleeker:
I did have #78s on all 4 corners. That's how they jet Holleys when you have power valves on both ends. If the secondaries don't have a P/V circuit then the main jets would be like six or eight sizes bigger.
BTW: I think you had better order that 34 Bravo from now.
Cayformula: Maybe you should tell these guys that your "poor little Formula 272SR1" (more like SR71!!) has easily run 93+ on GPS with a full load AND severely under-propped. AND that in our recent local poker run you nearly kicked Andreas Ugland's!! ass in a 44' Buzzi Hull w/ Seatek deisels/trimax drives. If that isn't the fastest 272 Formula on the planet I'll eat it!

BTW: I have every thing installed and guess what - The blower belt is too short! WTF?! is up with that? Oh well, I guess I should buy a smaller driven pulley? Wonder what that will do with my boost? I guess I'll just run race gas for ass kickin and disconnect the blower and take the lid off the carb box for regular running!

Seriously though, does anyone know the quickest way for me to get pulleys and/or belts for the M3 procharger?

Did you try Associated for the blower belt? They do keep some in stock, not sure if long enough for your application though.

Ian T with the poor little Formula

Hey Ian. How's the weather over there in Jolly old England? I called Ms. Z. a while ago and she said they don't have any 12-rib belts in stock, only 8-rib. I guess I'll have to call CP and see what they say.