ultimatefighter

BBK Power Plus Series, twin 58cc throttle body. Part # is BBK-1544. Will this work, if not, what would work better. Also, what fuel rails? I am ordering the HSR setup tommorrow or Saturday. So some fast help would be GREATLY appreciated.

jjvette

I am running the summit twin 58mm on my HSR. Very good quality and the price was right. I don't know how much the BBK is but you might save some bucks. Either way you go, make sure the throttle linkge is adjusted correctly so you obtain wide open throttle and no sticking at idle.

John

ultimatefighter

Did you have any problems with the fitment under your hood with the HSR? Thanks for the Summitt tip, i will look into those as well.
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Also, what injectors are you using? What fuel rails? Lastly, what kind of performance gain did you notice with your set up? Thanks

jjvette

Yes. The plenum that comes with the HSR is too tall for a stock corvette hood. I purchased a modified plenum for it. I am running the FMS 24lb/hr injectors with the HSR fuel rails and regulator.
I can't really say gains because I never raced it after I tuned it. I had a long runner modded 350 tpi that went a best of 12.79@105. I put the HSR on and went 13.10@107 but it was really lean. I will say even though it slowed down that I really like the HSR set up.
I have since installed a 383 with trickflow heads and have gone 12.16@112 It was also lean. I then dyno tuned it and had a base of 318rwhp. Two hours later after richening it up it was 342rwhp. I could probably pick up another 10or so with some more fuel. So I figure it'll run 11.80-11.90 now.
I just purchased a nitrous kit for it. I'm shooting for 10's.

Good luck with yours!
John