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GTX JOHN · 01-04-2011, 04:47 PM

Just my opinion Jim......... but the four barrel 273 looks a lot better to me. I believe the engine is at 220 and can run Edelbrock Alum. Intake. The Wongs and Bushmakers both run the combo and are FAST. The old Mopar Race Manuels aways suggest not running a 2 Bl. in a class that can run 4 BL. My boys 318 Wagon in P/SA can run Small or Large Thermoquads (up to 800 CFM) and a very efficient intake allowing it to Spin 7000 RPM comfortable. Every time we have tried a 2 Bl. it just doesn't want to run much over 5,500. There is a racer in Vegas building a GT car with 273 2 Bl. and I am watching to see how he does.
Also be aware that the Casting # on 915 only needs to be correct.....No matter when it was cast on Julian date IE: head can be cast a different year than car it is on if casting # is right!

Just my .02 for what is is worth .. .......John Irving

01-04-2011, 04:47 PM	#26
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,736 Likes: 2,808 Liked 2,488 Times in 698 Posts	Re: Gettin' back into it.. Just my opinion Jim......... but the four barrel 273 looks a lot better to me. I believe the engine is at 220 and can run Edelbrock Alum. Intake. The Wongs and Bushmakers both run the combo and are FAST. The old Mopar Race Manuels aways suggest not running a 2 Bl. in a class that can run 4 BL. My boys 318 Wagon in P/SA can run Small or Large Thermoquads (up to 800 CFM) and a very efficient intake allowing it to Spin 7000 RPM comfortable. Every time we have tried a 2 Bl. it just doesn't want to run much over 5,500. There is a racer in Vegas building a GT car with 273 2 Bl. and I am watching to see how he does. Also be aware that the Casting # on 915 only needs to be correct.....No matter when it was cast on Julian date IE: head can be cast a different year than car it is on if casting # is right! Just my .02 for what is is worth .. .......John Irving Last edited by GTX JOHN; 01-04-2011 at 05:00 PM.