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Old 05-12-2023, 02:26 PM
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mysticmissle mysticmissle is offline
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Join Date: Mar 2005
Location: rhode island
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Default how fast have you gone with reproduction 1967-1969 style D PORT long branches

have a decent 455 with mildly ported iron heads, xr 288 HR about 9.75:1 and stock un ground on Ames long branch manifolds estimate 425 hp
I know the car will be quicker with headers, but how much quicker? still have some bugs to iron out and have way too much gear in it w the 411s
I have another pump gas e head round port 455 waiting to go in that will have dougs headers on it. I really dont know if i would swap the manifolds for headers but curious to see how fast someone else may have gone. Im guessing 3600ish weight.

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1968 firebird cameo white on red 400 4 speed
1969 carousel red firebird 455, richmond 5 speed
1964 gto pump gas, 505 IA2 EHeads, EFI, 92 mm turbo ice cream getter in process now....
1970 lemans hardtop, gto clone Atoll Blue
1972 Maverick powered by 2004 gto ls1 and t56 6 speed, 8.8, fox strut front end, wifes car
 


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