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Old October 20th, 2016, 09:48 PM
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TJ's GMC TJ's GMC is offline
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Join Date: Mar 2015
Location: Cave Junction, Oregon
Truck: 1964 GMC 1500 LWB Wideside 305E V6.
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Default Re: New Spark Setup! Any tips on Installation?

Quote:
Originally Posted by GBCustoms View Post
Yeah probably not the best idea but, hey it runs. I got the correct AC Plugs to replace them.

Another question, Different topic, Is full 3" exhaust too big? Using the stock manifolds and down pipes then 3" thru flowmaster 50s.
3 inch is over kill. Mainly because the exhaust manifold outlets are 2.25 and the motor doesn't have the need for top end. 2.25 or 2.5 is plenty. Not going against what Pete said by any means though. lol 3 inch should roll the noise a little more.
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"Excuse the rust I use my truck"
1964 GMC 1500 305E/sm420 4 barrel intake mod and dual exhaust.
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