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04-12-2005, 02:22 PM
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305 cam carb manifold
hey guys i need some help. im building a 34 chevy pickup. im putting a 1980 to 1985 305 high output motor in it. i believe it was out of a trans am,i got a good deal on it. the motor is completly stock. i have a edelbrock victor jm manifold with a carter afb competition series carb that i was going to use on it. well after to talking with a few people i was told to use a dual plane manifold as it would perform better from idle and up. as where the victor jr is more mid range and up.
what im looking for is some rumble an a little get up an go. im thinking about going with the dual plane manifold, the carter carb, and i want to put a cam in it. i will be putting headers on it. so here goes should i use a comp cam which has performance from 800 rpms to 4500 rpms 425" lift int and exhst and a 206 duration. or i was told to use a crane cam 390 "- 410" lift with a 195- 202 duration. i was told this cam is old skool and had a pretty good rumble to it. the rpms on this cam is 800 - 4500... oh yeah after reading some posts about the 305 motor i was told the stock cam is 404-415 lift and 206-206 duration . so now im stumped dont know which way to go. what im looking for is like i said a little more get up an go and some rumble... i dont want to get into any other engine mods as im not sure i will be keeping the 305 in the truck after its all built and all the bugs are out of it...thanks for your help stick... ............... ok heres another question after getting a few replys and reading a few treads what i get is the 305 highoutput, has pretty good heads and a pretty good cam? isthat correct? should i even bother changing the cam. and just stick to changing the manifold and carb and putting on headers? thanks again stick Last edited by stickshift; 04-12-2005 at 07:44 PM. 
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04-12-2005, 02:31 PM
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hey man you need torque. maybe a performer intake and cam in your heavy chevy. in my oppinion you should spend the extra $100 and get a 350 engine. the rebuild price will be the same, the power will be exponentially greater!
Last edited by spinn; 04-12-2005 at 02:39 PM.
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04-12-2005, 02:37 PM
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thanks spinn i got the 305 cheep and if i can get a little more out of it untill i finish the project and work all the bugs out and save some cash.
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04-12-2005, 02:55 PM
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how is the truck geared ? stick or auto ? if auto ,what converter ?
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04-12-2005, 03:12 PM
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hey step, well its going to be automatic and im putting a 58 vette rear in it i believe it has 366 gears.
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04-12-2005, 03:43 PM
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Id stay conservative. something along the lines of Comp cams XE256 cam, Performer type intake and a Q-jet, or Edelbrock 500 CFM carb....or if your not a fan of Edelbrock carbs, like me,...the Demon 525 would be a great choice.
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04-12-2005, 03:46 PM
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thanks for the info
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