Spark plug recommendation.

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Aug 15, 2001 | 08:02 AM

poorboy8

Thread Starter

Senior Member

Joined: Mar 2000

Posts: 503

Likes: 0

From: Mount Airy, MD

Car: 79 Camaro RS

Engine: 355, carb, alum heads, XE262

Transmission: TH350

Axle/Gears: 3.73

Spark plug recommendation.

I'm going to install my MSD box and coil in the next few days and was wondering if anyone had some plug and gap setting recommendations?

Thanks

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j.wolfe
_ ____ _
91 GTA L98
Best time: 14.389@95.49 (VMP)
"...Deception..." Brandon Sloan * ...wounds heal and chics dig scars...

Aug 15, 2001 | 01:36 PM

TomP

Supreme Member

Joined: Mar 2000

Posts: 13,414

Likes: 6

From: Central NJ, USA

Car: 1986 Firebird

Engine: 2.8 V6

Transmission: 700R4

On my '86 2.8 V6, I'm still using the stock-spec plug (heat range "2", on the cold side). The stock gap spec for my plugs is 0.045". When I installed the MSD 6AL box and Blaster SS coil, I went to 0.050". I didn't notice an improvement in power- but then again, I didn't notice a drop in power, either. I went to 0.055", and the car was sluggish at low RPM's, and the exhaust smelled horrible. I went back to 0.050" gap.

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-Tom P (Hot rodded 1986 Firebird 2.8l)