Inliners International Forums General Discussion Engines 292 engine build advice needed

I have a 1953 Chevy Club Coupe and I am going to be installing a 292 Engine and a 700r4 and the rear axle will be swapped out to open driveline. I am a member on another forum where I have my car's build thread going.

I have been trying to figure out if I will be running a turbocharger or not on my engine for several reasons.
I have already had my engine block machined and short block assembled and I am currently working on installing lumps in the cylinder head myself. I know the machine shop I took my engine to does good work and is a well known race engine shop but in retrospect, I wish I had gone somewhere else where the machinist would have been more involved and interested to make sure I got what I wanted and made suggestions to get there. Halfway through the process I felt like they just wanted to get me in and out and make some money and get back to their big blocks with super chargers for their cigar boat customers.....I know for a fact that one of the guys was very annoyed to have to work on my engine.

At this point my engine is bored .020 over, all new clevite bearings, melling brass freeze plugs, mellings oil pump, standard hydraulic flat lifters, sealed power brand cast pistons, hastings rings, crank ground and balanced, .005 shaved off deck, .050 shaved off cylinder head (67cc chambers now), new SBI brand valves (stock sizes), new exhaust seats, new timing gear set, comp camshaft, all the rod and main bolts were re-used in assembly, and they did my bearing clearance checks for me. There is .050 deck clearance and the pistons have a full dish instead of the D shape the stock pistons had. I have been told that is a bad deck clearance and I will have a lousy quench. The machinist told me that I have about an 8:1 comp ratio.

As of right now I am thinking of two build plans.

First plan- Naturally aspirated, swap pistons for LPG style pistons and bring the comp ratio up to 9:1 and use a MLS gasket to get the quench gap as low as possible which would be around .080 once assembled.

Second plan- Turbocharger, intercooler, swap cast pistons for forged pistons and keep the lower comp ratio. Do I need a good quench for a turbo engine?

Either plan will be using a megasquirt 3 efi computer to control fuel and spark, and a GM TBI, and a wideband 02 for tuning purposes.

I don't know anything really about what turbos would be good and what to expect to pay for them, and my HP goal has always been around 200-250 or maybe a little more.