Which cam should I go with? Also which gear's should I run

[Plum crazy Bob]

hello everyone, my 73 340 cuda packs a nice punch but I'm yanking the automatic out of it this winter and putting in a 4 speed kit from brewers performance. I'm also doing some changes to the top end of the motor. The block is a 73 but it is built with 70 spec parts. I'm going with a set of edelbrock aluminum rpm heads, an air gap Intake, 650 double pumper hp series Holley and a set of tti headers going through an 2.5 x pipe tti exhaust. I need some knowledgeable advice on which hydraulic camshaft would be good for this setup. Also what is a good stop light to stop light, light em up gear ratio that is streetable for a Saturday night cruiser? I was thinking maybe 3.91's. rear wheel is a 15x8 on a 275/60/15 tire. Any advice is greatly appreciated

 

[Adam]

COMP Cams Thumpr Hydraulic Flat Tappet Camshafts 20-601-4

With 235 degrees at .050 this thing is stout but drivable on the street, it also makes good power up high, and 340s like to rev..
3.91s might get old real fast, what ratio do you have now? I think you should probably drive it first, with the new top end, and then decide if you need lower gears.

 

[Plum crazy Bob]

right now I have a 8 3/4 non sure grip unit.

 

[TC_Cuda]

Your using Elelbrock heads and intake ... have you considered there RPM cam, it is a good street cam.
318-340-360 V8 234° / 244° .488" / .510" 112° 107°

As for gears the great thing about 8 3/4 is in an hour you can have a new gear set installed. I have 2.76, 3.23, 3.55 and 4.56 and I plan to get a set with 3.91 in the future
Right now I have 3.23 with 26" tires and I run 3000 RPM at about 65 mph

 

[Plum crazy Bob]

A longtime friend/ hot rod performance shop owner also recommended going with the dyno matched rpm cam alongside the heads. The edelbrock top end kit is supposed to kick output to around 400 to the crank I've read. I'm thinking that is the cam I should go with Also I might just get a few sets of center chunks to test out. No harm in haveing a few extra gear sets laying around for different applications! Thanks for all the great advice guys!