Re: 4.10 gears...not what I expected.
porting and exhaust are what I would always go after first....
porting 30-40hp
Exhaust 15-20hp
You could even run the stock exhaust if on a budget, put in an X-pipe and some decent mufflers....
$1000-1200 for 45-60hp and more RPM range
Headers would be next
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LGAFF
90 #966-150K miles-sold
92 #234-sold
1987 Callaway TT #17
1991 ZR-1 #1359
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