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post #1 of (permalink) Old 12-11-2001, 07:34 PM Thread Starter
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I am geting ready to put a Howell EFI on my 258. At the same time I am also going to put on a 4.0L head. Is it worth the time and money to swap cams? If so what cam?

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post #2 of (permalink) Old 12-15-2001, 04:00 AM
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Re: Camshaft

I'd keep the stock cam. The Howell EFI is engineered for stock cams... and if you start messing with the cam you're gonna soon find yourself:

a. Investing larg amounts of time;
b. And dollars at the GM dealer;
c. Attached to a scope and;
d. Sending the results to Howell who'll;
e. Burn a new Eprom,
f. Send it back and;
g. You'll start the process all over again;
h. Til the engine's running right.

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post #3 of (permalink) Old 12-15-2001, 03:37 PM
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Re: Camshaft

For around $600-700 you could upgrade to a Holley 1850 600 CFM 4 BBL and a Clifford aluminum intake and a Comp Cam with a ton more lift and duration . Compare it to the $1000 plus price tag of the Howel or even the ridiculous Mopar system and you will come way out ahead . Look at the airflow of the fuel injection throttle body VS. the 600 Holley , not even close . Compare 175 HP at the flywheel of a Mopar FI setup , 145 and the wheels to 296 HP and 324 LB FT at the rear wheels . That is with my new ported 4.0 head on 4.2 block +.040 forged pistons Comp Cam Extreme Energy cam and so on . I tricked out my motor for the price of your Howel and Mopar FI kits and make way more power .

When it doubt , PUNCH IT !!
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