i have this tbs 250 blower.its a marine blower.on a 454 with merlin cast iron heads.how much h/p could you make.the blower will make between 5-6 psi.the heads are 310 intake runner w/stock big valves.thanks.

Any more specs on your motor. Should make 550-600 pretty easy.

Probably around 600hp with and 8.5 Comp ratio.

One did the blower cost you?? I'm looking to put one on my 454,, do you have a intercooler as well???

Take a hard look at $hredder's B&M 250 w/ Whipple chiller and carb in the Swap Shop. He has one left.

thanks for all the input.the spec,s i havent really nailed down.i have 3 two-bolt main 454 blocks.all three came out of motor homes,low hr,s ,but 2bolt mains and cast cranks.short block ,i will have the 2-bolt main blocks drilled and tapped for 4bolt mainsi have a engine that can do this as a favor for me.merlin cast iron heads,310 runners.i have a set of new speed-pro blower pistons,compression is 7.8.i am debating which carb set-up,dual 4160,s or a 1050 domanator.other than that thats it.i will have to get a cam and lifters,and crank-shakt and rods,maybe a 496 strocker.anybody ever do one of those w/a blower.thanks

Here's a teeeezer for ya!! wrong type of boat but it sounds sweet

http://www.youtube.com/watch?v=Xj4nd_9c0NA

I have one that is doing 700HP with one of those little blowers.

Just stud your 2 bolt block. I have had some great results doing that in the past. No need to drill, those long studs are as strong as adding the extra bolts. Don't stroke. just spin it a little harder and call rmbuilder for you cam.

I started at 7.5:1 and can still make 6.5lbs in a 468. You will need the intercooler though.

468's

yea,know what you mean.that blower wine is alsome