Thanks Dave for the #'s
I use to dig for them until I found the 313 more consistant for flow. I did have a couple of the Canadian intake that were better but they are long gone now. As far as pistons go I love CP's if in the buget and then Wiesco and then JE's wieghing in from 374 to 415 grams. If you don't like those prices prodes but heavier. The GM powered rods hold up good to around 400 HP we have about 2000 laps on one motor at a 5/8 mile track with no problems. Almost all of the parts I use are rated at 400 HP and we strech them to 430 HP and 6500 rpm. We do not do hole shots so I don't know for sure how my motors would hold up to brackets. I did build a left over part motor for a 77 Vette I traded for the Apache, It was a very strong street car but I nursed it somewhat off the line because of the Rear in the car but once rolling I shifted at 6500 rpm without letting up on the gas pedal. On the computor program the car was a 12 flat 1/4.
I use to dig for them until I found the 313 more consistant for flow. I did have a couple of the Canadian intake that were better but they are long gone now. As far as pistons go I love CP's if in the buget and then Wiesco and then JE's wieghing in from 374 to 415 grams. If you don't like those prices prodes but heavier. The GM powered rods hold up good to around 400 HP we have about 2000 laps on one motor at a 5/8 mile track with no problems. Almost all of the parts I use are rated at 400 HP and we strech them to 430 HP and 6500 rpm. We do not do hole shots so I don't know for sure how my motors would hold up to brackets. I did build a left over part motor for a 77 Vette I traded for the Apache, It was a very strong street car but I nursed it somewhat off the line because of the Rear in the car but once rolling I shifted at 6500 rpm without letting up on the gas pedal. On the computor program the car was a 12 flat 1/4.