TPI 85 IROC 305
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Member
Joined: Dec 2010
Posts: 136
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From: Houston, TX
Car: 85 IROC
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.42 Std. (3.73 posi, next winter)
TPI 85 IROC 305
I'm replacing the original injectors on my 85 305 TPI. I want to change the CAM and lifters too. Looking for a moderate change on the CAM. What suggestions would anyone have for a replacement cam and lifters? With the increase in cam size, should I increase from from the stock injectors?
All input is welcomed! Thanks
All input is welcomed! Thanks
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iTrader: (3)
Joined: Aug 2008
Posts: 614
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From: Memphis, TN
Car: 1992 z28 Purple Haze
Engine: 5.7L Tuned Port Injection
Transmission: 700R4
Axle/Gears: 3.23 both spinning
Re: TPI 85 IROC 305
I upgraded my motor with a Comp Cams XR264HR cam and matching valve-train components. I used their Camquest program and talked with a tech rep for help. Upgraded my injectors to 24lb Bosch III's. Went to Southbay Fuel Injectors for the help on those. My car is a 350 TPI, but this should give you a ballpark idea. I am sure you'll want to upgrade injectors, so I'd give them a call. They are very helpful and know their stuff.
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