340 Bolt ons

[440CudaDriver]

I got a fairly fresh 340 in my Challenger and I want to wake it up with parts I had for another 340. I have no idea what the compression is or year.. Its orange so I am hoping its a actual 71 - back but could be a 72/73 engine painted orange.

It has a mild comp cam, manifolds and a tired old Carter carb now

I have;
Edelbrock 340 Aluminum Heads
Edelbrock Performer RPM intake
Demon Street Demon 625
TTI Headers

I am planing on bolting all these goodies on unless someone has other advice on this combo..

[moparmaniac59]

Sound like a good project. TTI headers are about the best on the market for Mopars next to Dougs Headers. One thing I would suggest is a carb that flows a little more cfm's (700-750 cfm range). Demons can be problematic. Some people swear by them, but if you are not real savvy with carbs, I'd try something else like maybe a Holley or Proform. Keep us posted on the project! 


                                                                            Matt B.

[mrbill426]

 

[barracuda7199]

i would run a 750 carb properly tuned and bolt the other goodies you have on and go. any idea what cam is in it now? what trans in it? if automatic is there a stall converter?

[440CudaDriver]

727 with shift kit stock stall for now
Should I go vacuum or double pumper on the 750 carb
I'd like it to be street friendly and run somewhere in the 13s

[barracuda7199]

with not much in the way of a stall i would stick with a vacuum sec. one of the ones with the quick change top and a set of secondary springs to taylor how quick the secondaries open up would be good for your needs. any idea on the current cam?

[440CudaDriver]

It's a comp fairly mild probably like a rv grind

[mrbill426]

Is the original TQ a "bad" carb??

[Super Blue 72]

Is the original TQ a "bad" carb??

IMO depends what you are looking for. For performance I would get something else. Just my opinion.

If you want the stock look for the later years than that's what came on the later cars. I have that carb and I don't have the car on the road yet but I'll be keeping it as I like the smaller primaries for cruising. Similar to the Rochester quadrant-jet design. I had one of those on my old 5th ave with a 318. It was good since I didn't change the cam and the smaller primaries helped it not bog so much.

[moparman82]

Probably the best thin you can do is mail me those heads.