[QUOTE=1978 T/A;4000620]Well the last 2 weeks I have been working on the GTO for my summer project. The plans include new rods, intake, heads, cam, converter,exhaust, and to completely overhaul the suspesion.
I got my baselines for the car. Best track time was a 13.79 @ 99.40. Car put down 259/334 to the wheels.
my 69 GTO (AC, M20, 3.23, stock Gardner RA 3 exhaust including manifolds) put down 278 and 395. It is a 428 with 48 heads and an 068 cam bone stock (to 69 428HO manual) except I lowered compression to 9.5 and it is 60 over.
I didn't run it yet but I would say based on feel and 25 years of experience with many GTO's that it would also be about a 100mph car. By the way this is my second car with the identical engine and power train and it dynoed almost identical numbers.
by comparison my experience with typical stock 350horse auto air GTO's with non hiperf muffler shop duals is that they put down 230/325-330. $speed cars are usually about 5% higher due to less loss in the tranny.
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My Break Away Squad
1969 Fbird (base OHC, 350, 400HO & Sprint Cvt’s - 400HO & TA ht’s)
1969 Custom S 2dr ht
1969 LeMans (2dr & 4dr ht & Cvt)
1969 LeMans Safari wagon
1969 GTO (2 Cvt, 2 ht & Judge ht)
1969 Cat (3 Cvt’s & a 2dr ht)
1969 Ventura wagon 2 seat
1969 Exec 4dr post
1969 2 Bonnie Cvt's & 2 wagons
1969 Bonnie Brougham (4dr ht & Cvt)
1969 Grand Prix 2 SJ’s
1969 2+2 2dr ht (Canadian)
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