BUT;
My last Silver 68 RR 3520# with a 479ci 383/4.15" 0.040" over,
Alum head, roller valve train, 4200 stall, MVB 727tf, CalTracs, 4:10's etc. etc. etc.
A true driven street/strip car went N/A 9.77 @ 135 Sac. Raceway
on drag radials, drove it to the track albeit only like 12 miles each way,
I ran it with full 3" Flowmasters exhaust out the back,
I drove it about 20K+ miles over about 8 years,
allot of cruising, harassing the youth, in Sac. & Contra Costa Co.
with a few blasts out in the rural areas, if you get my drift...
But with a 300 shot of Top Gun N20 plate kit, Dominator same otherwise,
it ran a best of 8.58 @ 156 at a test & tune day mid July
no track prep, kind of greasy Sac raceway 100* heat, DA was about 3500ft
Car only had a roll-bar they would stop me after a couple of runs,
that were quicker than 11.50's, they'd let a couple passes slide & then stop me...
I would do allot of test & tune session 660 & 1000ft, so I wouldn't get hassled as bad...