Rating the Intakes for Performance on a 340 or 360.
Make--------------------------------------------------Port Size--------Carb Height------Weight
Edelbrock Performer #2176 ................................ .97" x 1.95" ............ 4.63" ............ 21.2 lbs.
Weiand Action-Plus #8007................................. 1.00" x 1.96" ............ 5.41" ........... 23.2 lbs.
Weiand #7510....................................................
Holley Street Dominator #300-7........................
Edelbrock #LD-4B............................................... 1.05" x 1.95" ............ 4.90" ........... 22.5 lbs.
Edelbrock Torker 340......................................... 1.00" x 2.07" ............. 5.35" .......... 22.0 lbs.
'1970' 340 'Stock' Cast Iron #3462848.............. 1.07" x 2.15" ............. 5.35" ........... 51.0 lbs.
'1968/1969' 340 'Stock' Cast Iron #2531915.... 1.07" x 2.15" ............. 5.35" .......... 51.0 lbs.
'1971' 340 'Stock' Cast Iron #3512100............. 1.07" x 2.15" .............. 5.05" ............ 49.5 lbs.
Weiand Stealth #8022....................................... 1.00" x 1.96" .............. 5.51" ............ 22.2 lbs.
Weiand #7510 X-Celerator................................
Edelbrock Torker II #5076................................ .98" x 2.16" ................ 5.72" ........... 19.2 lbs.
Offenhauser Equa-Flow #5693...........................
Mopar Performance #4876335.......................... 1.07" x 2.15" ............... 5.25" ........... 19.6 lbs.
Edelbrock #LD-340............................................ 1.07" x 2.16" ............... 5.30" ........... 23.1 lbs.
Edelbrock Performer RPM #7176...................... 1.01" x 2.17" ................ 5.35".............. 21.0 lbs.
Offenhauser Dual-Port #6006........................... 1.10" x 1.18" {Upper}... 5.16" .............22.0 lbs.
......................................................................... 1.10" x 0.75" {Lower}
Weiand X-Celerator #7545............................... 1.10" x 2.08" ................ 5.07" .............. 22.0 lbs.
Edelbrock Performer Air-Gap #7576................. .98" x 2.16" .................. 5.35" ............. 22.6 lbs.
Edelbrock Tarantula #TM-5............................... 1.08" x 2.17" ................ 5.73" ............ 21.0 lbs.
Offenhauser Port-O-Sonic #6073......................
Edelbrock Victor #2915..................................... 1.02" x 2.04" ............... 4.93" ............ 21.2 lbs.
Holley Strip Dominator #300-8.......................... 1.16" x 2.27"............... 5.50" ............ 23.0 lbs.
Mopar Performance M-1 #4876334 ........................................................ 5.56".............. 20.7 lbs.
Edelbrock Super Victor #2815............................ .98" x 2.15" ................. 6.30" ............ 21.5 lbs.