I'm fairly close to finishing my first plane (kit, Tiger 60, about 70% done) in about a decade and am already considering my next plane. I decided not to purchase an engine for this plane because I already have an OS .46 SF that might have had 1/2 gallon through it and rumor had it these were fairly strong and would be fine while I got reaquainted with flying again (going to be careful and do nothing but buddy boxed flights for a few weekends first).

After further investigation that .46 may not be enough, and am considering picking up a Tower .61, and using the .46 in my next project.

SO..

#1: Should I forgo the .46 for a .61 on the Tiger?
#2: Is the Tower .61 (read good things via search, but wanted to get some current reactions and have been bitten by off-brand re-labeled products before) a good selection or should I go with a more well known manufacturer?
#3: What is a good .46 size P-51 kit? I'm looking for something I can detail, retracts, etc. Basically something I can do slowly over 3-6 months