Some cam and spring, and gasket set help needed..

I had asked awhile back about a cam grind to have my factory roller cam reground for my super budget rebuild.

Here are the parameters of the car that I can tell about. It will be a street car. No passes down the track with this engine. I am wanting to get the rest of the car in nice shape, but want to work with what I have. This is gonna be a long post.

OK, the block is a late 80 roller cam 318.

My head situtation is as follows. I have two heads that came with the engine that had a crummy port match to 360 size gaskets. I also have a stock head with the original port sizes. Last, I have some 1.88 intake/1.60 exhaust valves from some stocker heads that will work just fine. They are tulip type, and will loose a little compression. All the heads mentioned above have had no machine work done on them other than the port matching on the two that came with the engine. I had scored the third head years ago. All of the heads are the 302 closed chamber 318 casting. Question on this one is, should I find another 302 casting head with 318 ports, and install the 1.88/1.60 valves in them, Or use the opened up heads? I will do some mild bowl grinding and possible chamber unshrouding if I use the bigger valves. Also, I can buy the valve guide cutting setup for my cheap drill press and lower them a bit to allow a little more valve lift. I plan on using standard valve retainers, not the rotator type. Also, I would like to use as much of a "drop in" spring I can use with the stocker, shaft mount rockers. I will use new factory roller lifters from Rock Auto. Also, I am gonna use correct length pushrods, even if I have to get them custom made to keep the lifter preload in check.

I want to use a vacumme secondary carb and a dual plane intake.

Ignition will consist of a mopar distributor that I will recurve myself using my past experience with other builds. I kinda want to use the HEI adapter I have seen online and go with that ignition. Although I havent ruled out the factory mopar electronic ignition yet.

My transmission is gonna consist of a non lockup 904, with 999 gears in it. For the lower first gear to get it out of the hole slightly better. Torque converter, Im thinking of using a 2500-2800 stall convertor. But honestly, I am gonna get the engine built up and everything I can possibly do to give the techs to build me a custom convertor to build up what would be best.

Rear gear is gonna be a dogleg 3.23 geared 8.25. Not dumping any money into that until I can get an 8.75 housing later. 28 inch tall tires.

Car is gonna have power steering, power disc brakes with drums in the rear, and air conditioning.

The motor is gonna use the stock pistons, rods and crank. Maybe a windage tray. Probably a new oil pump. Nothing fancy on the bottom end.

So my questions:

Should I find another standard intake port 302 head or just use what I already have?

Should I go with the bigger valves and the mild porting? I kinda like doing porting, and dont mind paying for a valve job to utilize the bigger valves. As long as new seats are not required. Im under the impression that the valves will work with what is already in the head. I heard these mods make for a real snappy 318 with these heads.

I need to get a complete gasket set for the build. I have seen several gaskets sets, some by off the wall brands, I think one by felpro. Anything wrong with going cheap on the gaskets? Also, what about using thinner head gaskets to increase compression a bit? 93 octane is everywhere around here. Even ethanol free fuel.

And the most important one.

CAMSHAFT AND SPRINGS.
I plan on having my factor cam ground by oregon camshaft grinders. But I am somewhat limited by the springs. What would be the best grind to use. Someone had recommended the 1331 grind. But I was told that the stocker valvetrain wouldnt hold up. I dont mind going to a stronger spring, but I dont want to start spending any money on better rockers if the ones I have are just fine.

I would like to get around the 300 horsepower mark with this engine. I wouldnt think this is an unreasonable goal. Really just want a fun to drive motor until I can get the rest of the car ready for something along the lines of a stroked 360. But I cant build a stroker motor right now. I gotta spend money on things like lighting, few rust places, front suspension rebuild, blah, blah.

So does anybody have any suggestions on any of this? Questions? Any ideas on anything to make this a nice cruiser motor with a little extra pep?

Thanks for any help. I take the info off of this forum VERY seriously. Very informed folks on here. Once again, thanks for any help.