Greetings from up here in the Perma Frost.. LOL... I just purchased the 2 blowers from IndySupra.. they are B&M 250's I am putting them on 454 bored to 468 they have the factory 088 heads.. 1.7 roller rockers Lunati Cam 20110549 with 177 blowers.. we dynoed them in the spring 550 HP at 5400 rpm. 540 torque. any hard #'s on these engines with the 250's on them?? I am hoping 650 HP but I think I might be stretching that..... any info would be great..

thx

Tuned correctly I think 650 on the conservative side. Say for instance when we dynowed a set of 454's with 420's and same carbs we were at like 657. That was with stock gm heads and the cams were relatively mild similar to that of 525sc. 5-6 pds of boost.

Hopper, what are you doing with the 177's??

good news for you .. those blowers were on my scorpion motors that came with the cig .. 70 hrs . perform perfectly the very short time I ran those mills .. late summer I purchased the cig .. I almost baught them back ... after he dropped them the third time .. indysupra a good dude ..

not sure yet... If I sell them I will let you know..

thx Rob... he seems like a great guy.. your orignal feed back on his helped push me off the fence and phone him.. plus the price drop.. I am in Canada so the exchange rate really sucks. I can't wait to get them on, I would have loved a set of 420's but hard to find especially if your on a budget...

I just need 1....

those blowers made 5 pds of boost on 540s brodix heads . nothing crazy cam made 750 hs and good torque ... said they wer pretty small for a 540 .. I'm guessing you should build more boost than the 540 did ? but to tell you the truth ,I'm no blower dude .. so don't bank on anything I say lol

I am hoping I might get 7 lbs with the smaller engines...

Precisely why you need to sell my a 177 setup for good old american dollars on your way to pick up your new ones... Help offset the price..... lol