Ohh Ohh I know
Keep the I-6. It'll be a good learning tool for required maintenance. You'll learn how to do a tune up, change oil, replace belts and hoses, and tinker with your first Holley carb. It'll also be the proper platform to learn the differences between the "I", and the "V" that you thought you had.
Otherwise, the 3.3L I-6 that you have is little more than junk.
Unless you do a simple Chinee turbo conversion.
Then with little more than some really crude crafting, you can take the existing exhaust manifold, and re-direct the single exhaust into a 200.00 Ebay turbo. Make a really snagulated looking "hat" to sit on top of the existing carb, and BOOM! you got yourself a bonafide 200 HP at 10 P.S.I.
You can visit the crumudgeons over at ford six:
http://fordsix.com//index.php?sid=5a637c9890f07e12aa54ee03cde23772
Here you will find living proof that Dinosaurs walk the Earth, and own cars with your engine in them. These cobwebs, have done exactly what I'm talking about, and with little more than a jet change (using Holley jets), and a re-curve to the distributor, are taking the absolutely inexcusable 88 HP that a 3.3L makes stock, and almost tripling it with a single, tiny Chinee wheezer.
No intercooler, No fancy-schmancy turbo plumbing, No aftermarket Cometic head gasket,......Just 10 pounds of force fed air into that anemic little carb, and ............Viola! 200 HP.
If I wanted anothor "experiment", and I could find a decent example of one of those boring turds,...I'd put a T3/T4 chicken -peen sized turbo on one of those sloths, and whiz around town after having spent a whole 450.00 on my turbo system to include a 200 dollar turbo, a 50.00 waste gate, and another 50 for a BOV. Leaving me 150.00 for the junk that I'll need to finish the system.
Here's the rub.
You gotta know what you're doing.
Now, before you get all " I-I-I- have never done a turbo before....." Rejoice.
Nobody here has done one up until the day they decide to do one either.