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Old 04-19-2017, 03:25 AM
GreenLS6 GreenLS6 is offline
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I Extensively test and dyno with the LS6/L78 cam.. with the Oval port heads and Manifolds in a 454 with 10.1 comp and a decent intake. you should have 525ish ft. lbs. of torque. DO NOT ADVANCE that cam in a 454 or it WILL NOT pull past 5000 rpm.
If your repro cam has the 114 lobe separation RETARD 2* ..with the oval ports it will loose No torque but will pull to 6200rpm.. minimal loss to vacuum.
Don't be afraid of the exhaust manifolds - I have made way more power than you think in my Pure Stock motors and pull to 7k + in my L89/396 ... 6800 rpm in my LS6 making North of 550hp with UNPORTED HEADS AND MANIFOLDS.

consider a Yank 11" convertor , they work nicely.
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68 RS/Z28
69 Olds Cutlass S
70 Chevelle SS LS6
70 AMX 390 Go-pack
71 Torino GT 429cj

Last edited by GreenLS6; 04-19-2017 at 03:27 AM.
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