I'm planning on removing the ZZ4 intake & Q-jet and going with the complete TPI from an 86 Iroc (it ran and drove, but was hit so hard in the back, it was scrap) so I have everything.

The L69 has 140,000 on it and compression check puts all cylinders between 155 & 160psi.

I have an energizer 272 Crane Cam, specs @ http://www.cranecams.com/master/apps...3.%20Energizer

Stock exh. manifolds. Running 6 Deg. BTDC. I'm at 5500 feet altitude.

3.73 posi, and 84 T5 w/ hydraulic throwout (going to mechanical & world class soon)

Can someone tell me if the cam w/ the TPI will run like snot? I wasn't wanting to get a PROM burned, or buy headers right now; I just wanted drivability and to pass emissions (I can put a non gutted L69 cat on if need be)

Eventual plans are LT1 & T56 so I wasn't going to go wild with parts thrown at this combo.

Thoughts?
TIA

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jmd
L69 / T5

 

216º intake duration and 110 lobe separation will make that engine lope! Plus the computer might not like it... Since you've got the stock TPI and exhaust manifolds, stick to a cam with 204-208 intake duration at .050" and 112-114 LSA.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

Anyone had anything similar? Did it run decent? Did it pass or fail emissions? Did it completely **** the ECM off?

Surely I'm not the only one who has overcammed...

Thanks Kevin. Yes it does lope If I had the $ for PROM &/or cam, I'd rather just put that towards the LT1 plans.

ttt