What spark plugs should I use

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Dec 4, 2004 | 04:14 PM

fst2qtrmile

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Joined: Dec 2004

Posts: 112

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From: Cape Cod, MA

Car: 1998 eclipse GSX

Engine: 4G63 2.0

Transmission: 5 speed

What spark plugs should I use

Ignition system consists of this: MSD 6A box, MSD Blaster coil, MSD 8mm wires, Accel Cap and rotor on a 88 Pontiac Trans am 350 TPI. I had the bosch platinum +4 in there and I think the MSD box burnt them out. I heard go with the regualr AC Delco plugs gapped at .45 sometimes .50. I just have a feeling my car isnt getting the most power out of it because of the plugs. Right now a have AC Delco plugs gapped at .50. Does anyone have any suggestions on what plug I should use overall????

Dec 4, 2004 | 06:20 PM

65panhed

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Joined: Sep 2003

Posts: 224

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From: OKC Oklahoma

Car: 1984 Z28

Engine: L69 305 HO

Transmission: 5 speed manual

Axle/Gears: Auburn pro yukon 3.73 gears and axl

Try AC rapidfires

Dec 4, 2004 | 06:26 PM

White91GTA

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From: Oklahoma

Car: 1991 Trans AM GTA

Engine: 5.7L TPI

Transmission: 700R4

Quote:

Originally posted by 65panhed
Try AC rapidfires

Those are the only plugs I run...run them in both my car and my truck

Dec 4, 2004 | 09:00 PM

Red Devil

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From: E.B.F. TN

Car: Tree Huggers

Engine: Do Not

Transmission: Appreciate Me.

Regular delcos, copper core bosch, champion, etc. Don't go with anything fancy for the metal. MSD actually recommends against using the bosch platinum series because of the increased resistance (and subsequent heat).