how much boost on a 408 - Ford Mustang Forums

slickmustang · #1 (**permalink**) 11-22-2006, 09:11 PM

Just found this site tonight so I just wanted to say Hi here is my question I have a kenny bell floz/floz with a 14 lb pulley on it but that was for a 302, how much boost would that make in a 408? I have a 94 cobra and I got a 351 roller motor out of a truck..with trick flow TW heads with 80 mm MAF with 42 lb inj and a 75 TB and I have the 3 gal trunk meth inj system and the stroker is all forged.I have been buying parts for 4 year and now I'm ready. this is the first time I have messed with any car since my 69 BOSS 429 so I need some help. it will be coming out of the machine shop in 2 weeks and I need to know what the timing should be and should I wait until it has 1,000 before it goes to a dyno tune?. with 93 oct and the meth it looks like I can run the timing a lot more that stock but that's why I'm asking for help any tips or info on any thing that would help to make sure I don't screw it up...thanks a lot Slick

slickmustang · #2 (**permalink**) 11-26-2006, 11:46 AM

is there any one that knows

Santo · #3 (**permalink**) 11-27-2006, 07:17 PM

These guys would know best

http://www.kennebell.net/contactus/contactus.htm

i believe they say a 347 stroker losses like 2-3 psi so mabey around 5psi? im just throwing it out there since noone else has said anything.