[Alan Warman]

J.C
At least you can get help on this forum, instead of getting flamed on the Moparts forum. With a 340 or a 360 it is a natural GT/F so you can go up or down a class.You can run GT/E with a 340 or 360. With a 340, rated at 290hp. you would weigh 3070 w/driver. The replacement head is rated at 295hp and would weigh 3120. The 360, rated at 285hp, would weigh 3020 w/driver. For the 340 combo, I would use the 308 heads and, with the 360 I would run the replacement heads. The reason why I would use the replacement head on the 360, is because Jeff at Modern Cylinder. Heads, says the replacement heads dont like the 2.02 intake valve. The only other issue is the use of the AMC type rocker gear. I'm sure Jeff Lee could tell you what to use. Also the 360 is less finicky to weather changes. By the way, is this the car that Ronny Sox helped you build? If so, I would really like to see some pictures of it. Hope this helps you out.