Old 06-18-2014, 04:52 PM
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1966goat 1966goat is offline
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Join Date: Mar 2008
Location: San Jose, CA
Posts: 217
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I have a RobbMc and Ram Air Oversized manifolds on my 66. Plenty of room. I definitely love the RobbMc, I've not had a single problem!


461ci, Edelbrock 72cc heads, KB 15cc dished pistons, comp xe274, PRW 1.5 roller rockers, Performer RPM intake, Holley 80508 750cfm, RARE oversized manifolds, Pypes X-pipe Exhaust
Old 06-18-2014, 10:50 PM
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robertf robertf is offline
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Join Date: Mar 2013
Location: SoCal
Posts: 101
Thumbs up IMI here

Installed the IMI Hi-Torque 108N. I've got a standard exhaust set up and it went in without problems. The mini starter has banished the hot start issues from my 73 TA.

Old 06-19-2014, 09:02 PM
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mchell mchell is offline
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Join Date: Jul 2003
Location: North Port, FL
Posts: 2,337

IMI as well.....

71 GTO, 463, KRE 295 cfm heads ported by SD Performance, RPM intake, Qjet, Dougs Headers, Comp cams HR 246/252 ...11 to 1 , 3.55 cogs, 3985lbs.....day two- 11.05 at 122mph ....1.59 60', 7.03 1/8 mile
Old 06-19-2014, 11:36 PM
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85_SS 85_SS is offline
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Join Date: Jul 2010
Location: Ontario, Canada
Posts: 248

Thanks for the feedback guys. I ended up ordering a Powermaster 9510 earlier today as I like the idea of being able to clock it however I want to get the cables away from the heat as much as possible. I wanted to go with a RobbMc, but it's not in the budget at the moment and he unfortunately doesn't have any Pontiac versions on clearance right now.

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1970 Pontiac GTO
Orbit Orange Judge Re-creation / YZ RAIII 400 / M21 4-Speed
1985 Chevrolet Monte Carlo SS
5.7 LITRE / TES Headers / SShaker Hood / WCT5 5-Speed

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