Im sure this question has come up a lot but im dyslexic which means it very hard for me to read. It would take me all day to look it up.
I tweaked my motor and got more speed but I guess the bottom end couldn't handle it, so now I want a motor that's more popular and has some aftermarket support

Thanks in advance for any help.
p.s my motor blew at 4607 miles. Is that about average?