I submitted my engine specs to Pro Systems Racing Carburetors. I've heard so much good stuff about them making gains of 50 to 75 HP with their custom built carbs.
I filled out the required form and submitted it with the engine specs on my roush 427/524 HP Engine. I was hoping for a 30-40 HP gain.
My Comment: This is a Roush 427R motor (not SR) 524 HP with a Holly 770 elec. choke, vacuum secondaries. Runs flawless and want it to stay that way. Is there something better and how much performance will I gain? thanks, tom
Response: Hi Tom, If it runs flawless leave it. There's power to be had BUT you will give up your "choke" to get it.
Thanks : ) Patrick James
My Response: I'll give up the choke....what will I get out of it in return? thanks, tom
His Response: Typically 15 h.p. BUT like I said, if it runs perfect, will you notice 15 h.p. as opposed to the loss of a choke?
I was hoping for more, but now I know that some of the claims are inflated from some who have posted here. Also, It seems that Patrick is an honest , no BS man with the knowledge to "leave it alone" when you need to.
I appreciate his honesty which is rare these days, and will absolutely have him build my next carb rather than picking one from the shelf. I'm still considering a 750 double pumper as i just don't feel right about vacuum secondaries with a Tremic 5 speed. Patrick if your watching, I may ignore your comments and have you set up a Double Pumper for me anyway. I could brag about gaining another 15 HP!!!!! I don't need the 524 HP I have now either! tom
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