360 build on a budget. Opinions????

Oh yes, I agree, sell that single plane, its useless for you combo, its will not add any hp, and just hurt torque. Get an eddy performer or rpm, also, look on ebay, they sell an performer rpm rip-off intake that is around $200 new. Junk the manifolds, they are very restrictive, and only suited to rest 273's. Go with a small carb, about 600 cfm, carter, eddy, hollet, or demon are fine. Summit makes a Holley rip-off for $250. Your cam will start making power around 2000 rpm to 5000 rpm, perfect for a dual plane manifold. I would suggest a 3.23 or 3.55 gears for around town driving, no higher than 3.23 for highway. If you have the high volume pump, use it, but if I had a choice, I would NOT use one for a mild engine, it robs power and may cause the oil pan to go dry at higher rpm's. I am using a std pump in mine.